Computer-generated hologram based on reference light multiplexing for holographic display

In this article, we propose a reference light wave multiplexing scheme to increase the information capacity of computer-generated holograms. The holograms were generated by different reference light waves and superimposed together as a multiplexed hologram. A modified Gerch-berg–Saxton algorithm was used to improve image quality, and different images could be recon-structed when the multiplexed hologram was illuminated by corresponding reference light waves. We performed both numerical simulations and optical experiments to demonstrate the feasibility of the proposed scheme. Numerical simulations showed that the proposed method could reconstruct multiple images successfully by a single multiplexed hologram and optical experiments are consist-ently good with numerical simulations. It is expected that the proposed method has great potential to be widely applied in holographic displays in the future.